... as per STD of BS, DIN,MSS Resilient Seated Gate Valve NRS Resilient Gate Valve comply with BS5163 Type A&B, DIN3352 OR AWWA ... C515.OS&Y, NRS Gate Valve comply with BS5150&MSS SP-70 Wafer Butterfly Valve, Lug Butterfly Valve comply with EN593/BS5155/MSS ... ,Double Sphere ,Double Sphere UnionAir Relief Valve:Single & Double Orifice 1).Size: DN40-DN600 2). PN10,PN16,PN25 3). Seaworthy wooden cases ...